potential isoforms of miR-30d-5p. The bar-plot on the right hand side shows increased significance at the edges of miR-30d-5p. In this case, Alzheimer Disease patients have higher expression on few base positions outside the annotated miRNA. This can be also seen on the read distribution plot on the right hand side. At position 26–29, Alzheimer Disease patients (green) have significantly higher coverage than controls.